feat(project): init

tests/request-schema.test.ts

@@ -0,0 +1,60 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import { parseGenerateRequest } from "../lib/request-schema";
+
+test("parseGenerateRequest returns normalized payload", () => {
+  const payload = parseGenerateRequest(
+    {
+      prompt: "A premium product poster",
+      size: "1536x1024",
+      quality: "high",
+      outputFormat: "png",
+      background: "auto",
+      count: 2,
+      moderation: "auto",
+      user: "browser-demo-session-id",
+    },
+    "gpt-image-2",
+  );
+
+  assert.deepEqual(payload, {
+    model: "gpt-image-2",
+    prompt: "A premium product poster",
+    size: "1536x1024",
+    quality: "high",
+    n: 2,
+    moderation: "auto",
+    output_format: "png",
+    background: "auto",
+    user: "browser-demo-session-id",
+  });
+});
+
+test("parseGenerateRequest rejects transparent jpeg output", () => {
+  assert.throws(
+    () =>
+      parseGenerateRequest(
+        {
+          prompt: "A cutout product shot",
+          outputFormat: "jpeg",
+          background: "transparent",
+        },
+        "gpt-image-2",
+      ),
+    /JPEG 不支持透明背景/,
+  );
+});
+
+test("parseGenerateRequest rejects oversized count", () => {
+  assert.throws(
+    () =>
+      parseGenerateRequest(
+        {
+          prompt: "too many",
+          count: 5,
+        },
+        "gpt-image-2",
+      ),
+    /最多生成 4 张图片/,
+  );
+});